DeepVacuum is a shareware, a useful web utility based on GNU wget
command line tool. Program includes a vast number of options to fine
tune your downloads through both http and ftp protocols.
DeepVacuum enables you to download: whole single pages, entire sites,
ftp catalogs, link lists from a text file, filtered types, ex. images.

SiteSucker is a Macintosh application that automatically downloads Web
sites from the Internet. It does this by copying the site's Web pages,
images, backgrounds, movies, and other files to your local hard drive.
Just enter a URL (Uniform Resource Locator) and click a button and
SiteSucker can download an entire Web site.

GNU Wget is a free software package for retrieving files using HTTP,
HTTPS and FTP, the most widely-used Internet protocols. It is a
non-interactive commandline tool, so it may easily be called from
scripts, cron jobs, terminals without Xsupport, etc.